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About McMaster-Carr

Engineers have been trusting McMaster since 1901. With over 500,000 products in stock, everything is at your fingertips for ordering. 

McMaster-Carr provides all of your basic industrial supplies. We have a large selection of screws, nuts, washers and bolts in stock. In addition, we are able to provide many raw materials including stainless steel and aluminum in many shapes and sizes, from sheets to bar stock. 

Need a new blade for your? We have all kinds of tools and accessories. Make sure not to forget about safety while you work. Eye protection is a must. So remember to get the best safety glasses and face shields to protect yourself and your workers.

Corporate accounts are welcomed and open Purchase Orders are able to be set up. Contact us to request your catalog.

With many locations across the United States, quick delivery is available at a reasonable price. Many products can be delivered the next day at no or little extra cost. 

Community Reviews Summary

176 Community Reviews 4.77/5 Overall Rating

All Ratings

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Speed
Price
Quality

Rating Distribution

Top Reviewed Services

Great place to find metal stock, screws and fasteners


R & D / Engineering , Medical Device
12/15/2013

Speed 5 / Price 5 / Quality 5

Mc Master Carr is a great place to get what metal stock and fasteners you might need.

Strengths: Mc Master Carr carries a huge catalog of metal rod stock, threaded stock, screws, nuts, bolts, etc. They are very fast with delivery and the pricing is good.

Needs to improve: With so many items, it can be hard to find what you want. The website probably doesn't have enough figures to show you what you are ordering.

Our choice for tools!


Clinical , Automotive
09/17/2014

Speed 5 / Price 4 / Quality 4

A great company with good customer service. Great products, good prices,fast delivery, with quick turnaround.

Highly recommendable...

Strengths: We have purchased various types of tools from this vendor that we use on our assembly lines, they are very durable,very sturdy, good quality tools, with a large selection to choose from. They are priced reasonably and delivery is fast, they even delivered a large order to us over night. Which worked out well for us!

Needs to improve: None

Great customer service and selection


Manufacturing , Education
09/17/2014

Speed 5 / Price 5 / Quality 5

These guys are awesome. They have so much stuff, but everything is easy to find and if you can't find it their sales team will point you to the right direction. We get raw materials and safety items from them. They're always fast and courteous. We like our relationship with them and will continue to work with them for many years.

Strengths: a ginormous selection and great customer service

Needs to improve: none

The absolute best and most used company for our own company!


Manufacturing , Medical Device
03/12/2014

Speed 5 / Price 5 / Quality 5

McMaster-Carr is used by all of our technicians and engineers on a daily basis. This is the absolute go-to for your day-to-day needs for small parts and just about everything. We are so grateful for their services, especially considering we are a start-up. Sometimes you can get components on the same day through their courier service. They are excellent. Great business-model.

Strengths: They have everything, super fast!

Needs to improve: NONE!

Great products, great service


General Administrative , Medical Device
05/05/2014

Speed 5 / Price 4 / Quality 5

Our firm orders mass quantities of parts, materials, hardware and components that are used in the manufacturing of our medical devices. We always tend to use McMaster Carr due to their quick fulfillment of items and exceptional service. The quality of their products is also very high and we know we can depend on them. I would highly recommend McMaster Carr.

Strengths: reliability, great service

Needs to improve: none

Quality productsLab equipments,tubings,wires


Manufacturing , Medical Device
04/17/2014

Speed 5 / Price 5 / Quality 5

This vendor provides us alot of stuff at work like lab equipments,
Wires,tubings,etc. they give us the highest quality they can get to meet our spectation and never failed on doing that. Highly knowlegeble on their products gives you alot of info and suggestions and also they have selections about your shipping process with a reasonable price.

Strengths: Reliable vendor
Good costumer service
Quality products

Needs to improve: None

Component supply


R & D / Engineering , Medical Device
05/24/2014

Speed 5 / Price 5 / Quality 5

We order from these guys a lot, they supply us with our pressure regulators, transducers and switches that are used in our dialysis machines. They have great pricing and an extensive catalog plus they have an easy online ordering service. One of our best vendors.

Strengths: Great supplier of just about anything you could possibly need.

Needs to improve: No complaints they have great pricing and a huge inventory.

Happy Shopper


Construction
02/15/2019

Speed 5 / Price 5 / Quality 5

We accidentally ordered the wrong size plastic tubing for a project. I contacted customer service and he helped me select a product that would work. I then shipped back the tubing that didn't work for us. Not only did they refund the purchase, they also refunded us the cost of shipping! That's going above and beyond to take care of a customer.

Mcmaster Review


Manufacturing , Medical Device
03/19/2014

Speed 4 / Price 4 / Quality 5

I like Mcmaster in general easy to order and get it the next day since i live in northern cal

Strengths: Fast turn around and easy to order online. I used Mcmaster to order tooling for year from difference company that I work. Also I live in norther cal when I order then I can get my order the next day

Needs to improve: little expensive when buying from Mcmaster

McMaster review


General Administrative , Medical Device
12/08/2013

Speed 5 / Price 3 / Quality 5

Check to see if they have a local store if you need something fast.

Strengths: They have a huge variety of common equipment and supplies needed by industry. They have almost everything in stock. They can ship same day or you can pick up an order. They have many locations.

Needs to improve: They are not the lowest cost source. They are best at small volume fast delivery.

Im a Mc aren't you


General Administrative , Construction
03/02/2014

Speed 5 / Price 4 / Quality 4

Products we get are high quality shipped well. The people at the call center are terrific helpful people that make you want to buy more

Strengths: Have everything under one roof. Great prices. They stock everything. Customer service is excellent. Return guarantee. Wide spectrum of power tools, bolts, wire, hand tools, nuts, screws.

Needs to improve: This is tough. Occasionally it takes a little long for delivery

On time delivery!


Quality , Medical Device
03/06/2014

Speed 5 / Price 4 / Quality 5

Best customer service and deliver your order on time. If there is a problem with the product they delivered, they will replace it right away without even waiting for you to ship the defect product first.

Strengths: Deliver on time and good customer service. So easy to place an order once you established an account.

Needs to improve: I never had a problem with this supplier.

McMaster-Carr Delivers!


Customer Service , Medical Device
06/09/2014

Speed 5 / Price 5 / Quality 5

As our business was growing we needed a reliable supplier to fulfill our firm orders of mass quantities parts, materials, hardware and components that are used in the manufacturing of our medical devices. McMaster Carr offered quick fulfillment of items and exceptional service. They have so far delivered and I would gladly recommend them to others.

Strengths: Reliability, Service

Needs to improve: None

One stop shop for just about everything


R & D / Engineering , Medical Device
02/18/2014

Speed 5 / Price 5 / Quality 5

Quick service is the norm when dealing with McMaster. In-stock items usually ship out quickly. The online site provides part drawings that really help when modeling a fixture

Strengths: They carry just about anything a start-up company would ever need. Shipping is quick and reliable

Needs to improve: not really a weakness but packaging for shipped items tends to be over kill at times.

One Stop Shop Catalog


R & D / Engineering , Medical Device
03/06/2014

Speed 5 / Price 3 / Quality 4

A great one stop shop to order parts you need. Delivery is very quick as well, but you do pay for it in shipping costs. their product is also generally pricier than if you were to look around elsewhere, but its a great place to go if you need something in a bind

Strengths: Shipping time, huge catalog

Needs to improve: pricing

McMaster - They have everything!


Manufacturing , Medical Device
03/31/2014

Speed 5 / Price 4 / Quality 5

A staple of any industry, McMaster has just about everything under the sun from construction materials to shrink tube to metric fasteners to motors. It used to be a little hard to find everything in the catalog, but the website makes even that easy.

Strengths: They have just about everything. And they bring it to you the next day.

Needs to improve: none

great at what they do and would use them agin


Purchasing , Medical Device
03/27/2014

Speed 5 / Price 4 / Quality 4

most products you need for general industrial is on McMaster website & great shipping speed If I place an order in the early afternoon, I tend to receive the item by the next day. Good customer service and helpful online website.Good selection of products and a well designed business concept

Strengths: fast shipping and a lot of choices

Needs to improve: none

great resource for r&d needs


R & D / Engineering , Medical Device
03/05/2014

Speed 5 / Price 3 / Quality 4

fast service, reliable overnight delivery, extremely good selection of both raw goods and components. Could have more information and pictures of some products.

Strengths: Great selection in their catalog, fast reliable delivery.

Needs to improve: Posting (or links to) more pictures and brands of products could be useful in some of their catalog listings, especially online, where more information can be added.

One stop shop for everything you need!


Manufacturing , Semiconductors
12/24/2013

Speed 5 / Price 5 / Quality 5

I wanted to purchase an o-ring once and I was still evaluating whether that particular o-ring would work in my application. Hearing my needs, McMaster offered me a free sample for evaluation purposes. Great customer service.

Strengths: 1. Provide samples upon asking. Doesn't have to purchase.
2. Short lead times.

Needs to improve: I personally has never experienced any issues with McMaster-Carr.

Great for Screws and Fasteners


Manufacturing , Medical Device
12/22/2013

Speed 4 / Price 4 / Quality 4

You can find a great selection of screws and fasteners directly on the website.

Strengths: I have used them with all the companies I have worked for. They have great customer service. You can find any fastener you are looking for, and the company is more than happy to send you samples. They take pride in helping companies big and small.

Needs to improve: None.